Something was bugging me, so as time is available currently....
My main machine is a brand new NUC with Windows 10 1909 pro and this I 'thought' was clean as such.
I had a recent issue where chrome would not update to the latest version and nothing I tried resolved the issue, I then had an issue with a recent windows update that would not install, so I began to wonder if something may be out of wack.
I have Macrium Reflect so I did a full backup.
I reinstalled Windows 10 direct from Microsoft (as always) applied all updates and patches and installed normal apps using ninite, then tried to access the NVR using various browsers, I started with Brave as discussed above, as normal it connects OK but no video, it says install the webcomponents thingy, but that does nothing, I then installed the ie tab extension and for the first time in ages I have video, I then tried chrome and it too had video once the ie tab i used.
!!!!
It has taken me a good few hours to get to this point, but I am now sure that at some point the NEW install went out of wack, how and when I have no clue, I keep this machine clean, all my 'testing' is done on others
'
I will try the firmware 190909 on one unit and see if the loss reoccurs.
UPDATE
190909 IS DEFINITELY ROGUE, SAME ISSUES AS BEFORE